<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
<style>
    .div1 {
        height: 100px;
        background-color: aqua;
        border: 1px solid #000;
    }

    .div2 {
        height: 100px;
        background-color: blueviolet;
        border: 1px solid #000;
    }

    .div3 {
        height: 100px;
        background-color: burlywood;
        border: 1px solid #000;
    }
</style>
</head>
<body>
    <div class="div1">div1</div>
    <div class="div2">div2</div>
    <div class="div3">div3</div>
</body>
</html>